On Mon, 2009-03-16 at 12:44 -0700, Ian Romanick wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Keith Whitwell wrote: > > > >> The only hardware that can support this extension that doesn't already > >> have support for ARB_fragment_shader is G400 and R100. Convince me that > >> we really want to clutter Mesa with shit extensions to add functionality > >> to support 10 year old hardware. > > > > Roland can probably give a much better technical dissection of the > > alternatives, but I'll make a stab at it. > > > > I think the real value in the extension is the signed texture format it > > exposes. Right now, applications which want to use that type of texture > > are already checking for this extension. If we want to support such > > applications, the most straight-forward way to do that is implement this > > extension. > > Now *THAT* makes sense. > > After reading this, I went looking at other extensions. I'm really > surprised that the only other extension that exposes signed normalized > texture formats is GL_NV_texture_shader. I'm glad you didn't try to > expose that extension instead!
Yeah, I think we came to the same conclusion. The ATI extension has a lot less baggage. > If you do make a Mesa extension to just expose the signed formats, is > your intention to re-use Nvidia's enums? Or are you only interested in > the two-component formats? If so, the extension should probably be > crafted to follow the pattern of ARB_texture_rg instead of DUDV. I know there is interest in the 4-component format, but I think exposing it in a new extension makes more sense. I agree it would also make sense to reuse the enums if possible. Keith ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ Mesa3d-dev mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/mesa3d-dev
